Your situation is upsetting to read about. Your housemates are selfish, unscrupulous, and dishonest. You should find a better place to live.
To address your question, the weak part of your plan is probably the servo + linkage. These need to be positioned reasonably precisely to operate the power strip switch properly. Unless they are very firmly afixed to the Radio Shack chassis, there is a likelihood that they will become misaligned with repeated use (or shaking or other abuse from your housemates). You may be attaching them to the chassis with screws which might be exposed to tampering. (One way to defeat the tampering would be to have another chassis surrounding the whole thing.)
Another issue: while you told us how unprincipled your housemates are, you didn't mention if they are mechanically inclined. Are you sure they can't buy a $1.98 set of Allen drivers and open your box? Maybe epoxy would be safer. Good luck!
To address your question, the weak part of your plan is probably the servo + linkage. These need to be positioned reasonably precisely to operate the power strip switch properly. Unless they are very firmly afixed to the Radio Shack chassis, there is a likelihood that they will become misaligned with repeated use (or shaking or other abuse from your housemates). You may be attaching them to the chassis with screws which might be exposed to tampering. (One way to defeat the tampering would be to have another chassis surrounding the whole thing.)
Another issue: while you told us how unprincipled your housemates are, you didn't mention if they are mechanically inclined. Are you sure they can't buy a $1.98 set of Allen drivers and open your box? Maybe epoxy would be safer. Good luck!