After realizing my mistake, I couldn't figure out how to get out of this mode. I tried the power key and volume key in every combination I could think of, but to no avail, so I finally threw up my hands in frustration and just connected to my PC and went through a re-installation of the recovery image via odin.
If I ever make this mistake again, I really don't want to have to boot up my little-used PC, hook up odin, etc., just to be able to get out of ODIN download mode. Is there any way, once I get into ODIN download mode, to get my tablet to simply reboot normally, without a PC or ODIN being involved?
Thanks in advance for any suggestions.