Would I be able to put a management software (lightspeed systems) back into a chromebook after getting rid of it?

Question

SO at my school I feel like if I can figure out how to get this filter and monitoring system off my chromebook then I can take money and do it on others. The problem is it is super strict and I for sure know there is no way to get into dev mode unless I unscrew the chromebook and do stuff. So my question is, if I do go into dev mode I would need a way to get rid of the filters or disable them but I really think that would be easy. At the end of the year they take our chromebooks so we dont keep them over the summer and I imagine they check them. Would there be a way to put the system back in, like a flash drive, which are blocked right now, or something? Any help would be amazing for some quick $$$, thanks!