If it was near anything electronic you may need to set a trap near it. They hang out near exhaust ports for incubation. Because they like to ruin everything. Last thing I need is to move a system and have creepy crawlies come out of it.
Sad to say if you saw 1 you saw 20. Because you caught the stupid one that went outside. Get traps I deal with those fuckers every once in awhile. I live above the broiler in my apartment building they tend to come up near the bathroom.