Conley said Thursday night after the Raiders made him the No. 24 overall selection that he was to meet with authorities Monday.
Attorney Kevin Spellacy told the NFL Network that Conley's meeting with Cleveland police took place as planned.
"I'm very confident that it'll be resolved," Conley said Thursday night on a conference call with Bay Area reporters. "I took a [polygraph] test today that helps. Then when I made my statement and all the evidence that I have, I feel confident that it'll be resolved.
"Like I said in my statement, I could've made way better judgment. I mean, I didn't know what I was getting myself into, but I definitely could've made a better decision."
The 6-foot, 195-pound Conley has been neither charged nor arrested after a 23-year-old woman reported that he sexually assaulted her April 9 at a Cleveland hotel.
Raiders general manager Reggie McKenzie said the organization did its "due diligence" in researching the case and said he spoke with team owner Mark Davis before making Conley the franchise's first-round draft pick.
"We trust our research, reports, everything that we have on Mr. Conley," McKenzie said after making the pick.