IMO you should have waited a long time before going back, like in 10 hours or over night etc. I feel like if you only let him sit for 1 hr you could have/ possibly did push him. One of the reasons people wait a long time on marginal shots is so the deer BEDS DOWN AND BLEEDS OUT, does it work all the time? no, but I would guess more people find there deer on marginal shots if they wait a while, instead of going right after them and pushing the deer hundreds of yards away.
Good luck finding him and as stated before the best thing you can do now is make concentric circles around last blood and hope to either find the deer or more blood.